Process of obtaining proteid matter from corn.



J'OKICHI TAKAMINE, OF NEW YORK, 1T. Y., AN'D SADAKICHI SATOW," 0F SAI, JAPAN.

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No Drawing.

To all/whom it may concern. Y Be it known that we,'JoK1cH1 TAKAMINE and Summon: SATOW, both subjects of the tion in Process of Obtaining Proteid Matter from Corn, (Case F,) of which the following is a specification.

"This invention relates to av'pro cess of obtaining proteid matter from corn, and consists substantially in the mode of operation hereinafter set-forth andfinally pointed out in the appended claims.

In carrying out our invention it is de- 'sirable, thou h" not essential, to eliminate it is also desirable and important to remove the oil from the grains of corn. The bran forms the outer shell or skin of the grain, while the oil is carried in the elastic soft germportion of the grain. In order to reduce the corn grains to a condition which permits the elimination of the bran and the freeing of the oil carrying germs the corn is steeped in water containtime, say, two or three days, su cient to- 80 the grains.

The next step in the carrying out of the invention is to separate the oil carrying ing a suitable antiseptic, such as a small percentage of s'ulfurous acid, for a eriod of cause the grains to swell up; and become soft. The swollen. and softened grains arethen crushed into comparatively small pieces. This can be accomplished b passing the grain through a; crushing mi 1. By

thus breakingthe ins into small pieces the bran peels o y and the oil "carrying germs, ,unbroken b the crushing operation, become detache from the body. of

germs from the crushed mass.- This may the crushed mass in water and by agitating the mass the bouyant detached germs of the grain will float to the surface and may then e readily and easily removed in an convenient manner, and utilized according to ordinary methods for the recovery of the oils therefrom or for other purposes.

After the removal of the germs the re maimng mass is groundfine with water and Specification of Letters Patent. Application filed m ne. 2s, 191e '8eria1'1t'o. i83,810.

is then bolted through very fine mesh boltapan, V have made a certain new and useful invening cloth or silk inorder to separate and remove the bran, which'is collectedand utilized in any desired manner and for any desired purpose; for which bran is suited.

The liquid which asses through the bolting silk contains the starch and roteids of the corn grains. From this starch is separated and recovers suitable or convenient manner. and effective method is to cause the liquor to flow in a. thin sheet over an inclined surface of extended length to permit the starch to settle out of the liquor. After the starch 1n any has been removed the remaining liquor,-

which is yellowish and turbid, isperimtted to stand whereupon the proteid matter settles to the bottom in the form of a thick mud-like sediment. The liquid is then decanted or otherwise removed or drawn ofi l atented engineers.

80 i nor the A simple and the; residue containing the proteid inatter is suitably dried, or it may be compressed into cakes in any suitable manner,

such as by being passed through affilter press. We will call this product proteid' meal. It constitutes'about 8% of theoriginal corn and consists roughly of, 30% of starch cells and 40% to 50% of proteids and a; small percentage of fibrous material.

The'proteid meal produced as above de-- scribed may then be subjected to suitable treatment to refine it. Various refining methods may be employed. According to one method the meal is treated with an alkaline solution. such as a dilute solution (if i caustic or carbonated alkali, or causticor carbonated ammonia Refined proteid is then precipitated from the resulting. liquid by an acid, such as sulfuric, sulfurous, acetic or phosphoric acid, or by a ferment, such as lactic or acetic, or, if de-' sired, the proteids maybe purified, before precipitation, .by filtration, centrifuging,

V fractional precipitating, or after. filtration by fractional solution of precipitated inu-- pure proteids, ,or by converting one or'more r cal compounds. with different properties components of the liquid into the chemiwhich permit theirseparation. B thus purifying the liquid a refinedprotei prod not is obtained which is suitable for use in the manufacture of various valuable commercial produ cts 'such as foodproductsP celluloid-like substances, varnish, lacquer, artificial leather artificial rubber and the like.

According to another method the'pro'teid meal is extracted with water and the proteids are precipitated from the resulting.

liquid either directly ,or after being purified b physical means, such as filtrationi,

centri 'ging and the like, on by chemica it means, such as, after rendering alkaline, by adding caustic or carbonated alkali'or eaustic 'or carbonated ammonia and precipitating with acid or a ferment, as above described.

16 According to still another method the meal is treated with an aqueous salt solution,

- such as sodium chlorid, ammonium sulfate,

;.or the like, and the resultin liquid is further purified, if desired, in t e same way as 20 above described, and is then subjected to dialysis. x I

The refined roteid product produced as above describe? whether according to one or another of the methods referred to, is yelzelowish in color, tasteless, odorless, 'lastic and sticky when kneaded with alkaline'ra' actin solution or phosphoric acid. It is solub e in all proteid solvents, shows all characteristic reactions of vegetable proso teids, and when dissolved in alkalis and acids, respectively, it forms alkali salts and acid'salts. It evolves ammonia gas when heated with hydroxid of alkali or of alka line earths,andychanges'dnto afyellow mass as when treated with concentrated nitric acid.

It is easily rendered transparent, is adhesive and can be molded into ermanent shape. When treated with suitab' e solvents it forms derivations of proteids which are so flexible, elastic, adhesive, tough and strong. If desired, the natural coloring matter of the corn may be eliminated by treating the crude proteid obtained as above described by means of an organic solvent such as alcoas hol or other. r

Having now set forth the objects and natureof our invention and the method of car.- rying out the same, what we claim as new and useful, and of our joint invention, is-- from corn, the method which consists in softening the corn 1 grains, then roughly crushing them and removing the oil carry= ing germs from the mass, then inding the mass with water, then bolting t e resulting v liquor and removing therefrom the starch contained therein, and separating the solid matter from the remaining liquid, in the form of a meal, then passing the meal to into a liquid solution, and finally separat ing the proteidal contents of the liquid solution.

2. In the production of vegetable proteids from corn, the methodwhich consists in" at softening the corn grains, then roughly aavaeaa crushing them and removing the oil ca :f!

inggerms with water, then'bolting the -resultinglioi uortained therein, and separating he solid mat= "ter from the remaining liquid, in the form 1. In the production of vegetable proteids crushing them and removing the oil carrying germs from the mass, then inding the mass with water, then bolting t e resulting liquor and removing therefrom the starch contained therein, and separating the solid matter from the remaining liquid in the form of a meal, then passing-the meal into a liquid solution, then purifying the liquid solution, and finally separating the 'proteidal contents of the 1purified SOlll'tlOIL 3. In the production 0 vegetable proteids from corn, the method which consists in softening the corn grains, then roughly from the mass, then grinding te mass with water,-then bolting the resulting liquor and removing therefrom the starch contained therein, and separating the solid matter from the remaining liquid in the. form'of a meal; then. assing the meal into a liquid solution, and, nally precipitating the'proteidalcontents ofthe liquid solution.

, '4 In the production of vegetable proteids from corn, the method which consists in softening the corn grains, then roughly crushing them and removing the .oil'carrying' germs from the mass, then grinding the mass and removing therefrom the starch containedthereimand separating the solid mat ter from the remaining liquid,'in the form ofa mesh then assing the'meal intb a liquid solution and nally precipitating with an acid the proteidal contents of the liquid solution.

'5. In the production of vegetable proteids from corn, the method which, consists in softening the corn grains, then roughly crushing them and removing the oil carrying germs from the mass, then grinding the mass with water, then bolting the resultin liquor and removing therefrom the stare con=' lie liquor and removing therefrom the stare contained therein, and separating the solid matter from the remainm liquid, in the form of a meal, then passing the meal into a liquid solution, then purifying the liquid solution, and finally precipitating with an acid the proteidal contents of the purified solution.

7. in the production of vegetable proteids from corn the method which consists in sot- .130

tening the corn grains, then crushing the a liquid solution and finally precipitating same and removing with water the germs of the proteidal contents of said liquid solution; the corn ains, then grinding the mass with In testimony whereof we have hereunto 10 water an removing the bran and starch set our hands on this 21st day of November,

5 from the resulting liquor, then separating A. D. 1916.

the solid substances remaining in the liquor, r J OKICHI TAKAMINE, then passing the separated substances into SADAKIOHI SATOW. 

